Table 5. Flashrite Programming Algorithm
Command
Bus Operations
Standby
Comments
(Note 1)
PPH
Wait for V Ramp to V
PP
Initialize Pulse counter
Program Setup
Program
Data = 40h
Write
Valid Address/Data
Standby
Write
Duration of Programming Operation (t
)
WHWH1
Program-Verify (Note 2)
Data = C0h Stops Program Operation
Standby
Read
Write Recovery Time before Read = 6 µs
Read Byte to Verify Programming
Standby
Write
Compare Data Output to Data Expected
Reset
Data = FFh, resets the register for read operations.
Wait for V Ramp to V (Note 1)
Standby
PP
PPL
Notes:
1. See AC and DC Characteristics for values of V parameters. The V power supply can be hard-wired to the device or
PP
PP
switchable. When V is switched, V
may be ground, no connect with a resistor tied to ground, or less than V + 2.0 V.
PP
PPL
CC
2. Program Verify is performed only after byte programming. A final read/compare may be performed (optional) after the register
is written with the read command.
Am28F256
17
AMD [ AMD ]
